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Developmento of flexible nanocatalyst using dendron-metal nanoparticle complex

Research Project

Project/Area Number 17K05838
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Functional solid state chemistry
Research InstitutionKagoshima University

Principal Investigator

Okamura Hiroaki  鹿児島大学, 理工学域理学系, 教授 (30244221)

Co-Investigator(Kenkyū-buntansha) 蔵脇 淳一  鹿児島大学, 理工学域理学系, 教授 (10170078)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords金属ナノ粒子 / 有機無機複合材料 / ナノ粒子触媒 / 樹状分子 / 樹状分子-金属ナノ粒子複合体 / ナノ空間制御
Outline of Final Research Achievements

Novel preparation method of dendron-metal nanoparticle has been developed. Newly developed polyamidoamine (PAMAM) dendron containing sulfanylaniline is an excellent stabilizing ligand of metal nanoparticle, as well as mild reducing agent. The dendron-AuNps or AgNps were spontaneously prepared by the reaction of G0, G1, G2 and G3 PAMAM-sulfanylanilines and Au3+ or Ag+ ions in mild condition. Solubilization of indigo dye into the aqueous solution of dendron-Np indicated that there is a hydrophobic space inside the dendron-Np. Size of the hydrophobic space in the dendron-Np was estimated by the amount of indigo in the solution.

Academic Significance and Societal Importance of the Research Achievements

柔軟な樹状分子を金属ナノ粒子表面上に一定の方向で配列させる方法を確立した点が最大の成果である。樹状分子をあらかじめ水溶液中でミセルもしくはミセル様の分子会合体としておき、その内部で金属イオンの還元を行うことで、目的の構造を持った複合体が得られた。スルファニルアニリンを有するポリアミドアミン型樹状分子は、金イオン、銀イオンなどの金属イオンを還元可能な還元剤としても働くため、この反応は自発的に進行し、極めて温和な条件下で、樹状分子-金又は銀ナノ粒子複合体を調製することができた。
得られた複合体内部に疎水性空間が存在することは、水に溶けないインジゴ分子の可溶化実験によって確認された。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2019 2018 2017

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (6 results)

  • [Journal Article] Preparation of antimicrobial gold and silver nanoparticles from tea leaf extracts2019

    • Author(s)
      Onitsuka, Satoaki; Hamada, Toshiyuki; Okamura, Hiroaki.
    • Journal Title

      Colloids and Surfaces B: Biointerfaces

      Volume: 173 Pages: 242-248

    • DOI

      10.1016/j.colsurfb.2018.09.055

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Total Synthesis of the Claimed Structure of (±)-Hyptinin and Structural Revision of Natural Hyptinin2017

    • Author(s)
      Kazuto Maeda, Toshiyuki Hamada, Satoaki Onitsuka, and Hiroaki Okamura
    • Journal Title

      Journal of Natural Products

      Volume: 80 Issue: 5 Pages: 1446-1449

    • DOI

      10.1021/acs.jnatprod.6b01116

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Spontaneous Preparation of Highly Stable Gold Nanoparticle Stabilized with <i>ω</i>-Sulfonylated Alkylsulfanylaniline2017

    • Author(s)
      Mohieeldin Darwish Mahmoud Ibrahiem、Takenoshita Yuto、Hamada Toshiyuki、Onitsuka Satoaki、Kurawaki Junich、Okamura Hiroaki
    • Journal Title

      Journal of Oleo Science

      Volume: 66 Issue: 12 Pages: 1349-1354

    • DOI

      10.5650/jos.ess17151

    • NAID

      130006235050

    • ISSN
      1345-8957, 1347-3352
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Spontaneous Preparation of Polymer-Supported Platinum Nanoparticles and Its Application for Catalytic Reduction2019

    • Author(s)
      Mahmoud Ibrahiem Mohieeldin Darwish,岡村浩昭
    • Organizer
      ナノ学会第17回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 有機触媒として作用する樹状分金属ナノ粒子複合体の調製2019

    • Author(s)
      安東楠名未,岡村浩昭
    • Organizer
      ナノ学会第17回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2種の配位子を任意の比率で固定化した金ナノ粒子の簡便な調製 法の開発と生じた金ナノ粒子のpH 感受性および金属イオン感受 性の検討2018

    • Author(s)
      石川 拓己・鬼束 聡明・濱田 季之・岡村 浩昭
    • Organizer
      日本化学会 第98春季年会
    • Related Report
      2018 Research-status Report
  • [Presentation] ジヒドロナフタレンリグナン類の全合成と、天然ジヒドロナフタレンリグナン類の構造修正2018

    • Author(s)
      前田和人・鬼束 聡明・濱田 季之・岡村 浩昭
    • Organizer
      第60回天然有機化合物討論会
    • Related Report
      2018 Research-status Report
  • [Presentation] 2種の配位子を任意の比率で固定化した金ナノ粒子の簡便な調製法の開発と生じた金ナノ粒子のpH感受性および金属イオン感受性の検討2018

    • Author(s)
      石川巧己、鬼束聡明、濵田季之、岡村浩昭
    • Organizer
      日本化学会第98回春季年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Hyptosideの全合成および天然dihydronaphthalenelignan類の構造訂正2017

    • Author(s)
      前田和人、鬼束聡明、濵田季之、岡村浩昭
    • Organizer
      第61回香料・テルペンおよび精油化学に関する討論会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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